New Lightborn will completely counter it.

It's not a common thing to see since only really skilled survivors can pull this off consistantly. Basically somebody jumps in a locker and someone waits and gets a flashlight save (aiming + timing is pretty hard and doesn't work on every locker). If somebody knows the right angle and timing they can get a save almost every single time and the killer can't do much about it really since the locker grab animation is long and the survivor can get into position easily.

However, there are sometimes two lockers next to each other and this is where it gets extremely broken. Two survivors can jump into these lockers and once somebody gets grabbed the other one can always get a save. The killer can't do anything about it except using lightborn.

I got a locker flashlight save in a random solo queue game this past weekend so it seems to still be in the game.